Dennis is looking to get a Samsung Galaxy Note 3 for $150. Leo says that sounds like a subsidized price, and while he's saving the money up front, he'll be paying a lot more over the course of 2 years. Is the Note 4 better at $150 more? Leo says it's an amazing phone, as they all have been. Better screen and camera, and a faster processor. He's more likely to get updates for it.

If the Galaxy Note 3 is brand new, then it's an apples to apples comparison. If the $150 difference is an issue, then he shouldn't hesitate, and get the Note 3.

Benny is looking to buy a Samsung Galaxy Note 4. Leo says it's an excellent choice. Benny is wondering about all the junk that Samsung puts on their devices, though. Leo says that while it got pretty bad with with the Galaxy S4 and S5, the Note has been a different story of late. Samsung has backed away from its software obsessions.

Gary is thinking about rooting his old Android phone. Leo says that rooting means he can run his phone as an administrator, or "super user." Some companies, like Samsung, make it a bit harder to do, but it can be done.

Gary should check out XDA Developers.com. Two popular boot loaders include Clockwork Mod, and Twerk. But he'll have to use the exact rooting instructions for his specific model phone. And it varies from model to model.

Henry is trying to decide between the Samsung Tab 8, and the Acer Iconia. There's a $130 difference between the two, and Henry says the specs look pretty similar.

Leo says that the Samsung Tab can come in Android or Windows, so that could certainly make a difference. Acer is also known for inexpensive hardware that's very good. Leo says that the Acer is an excellent tablet. The Samsung may give him better battery life, but either will work just fine. Henry should make sure they use at least version 4.4 of Android (Jelly Bean)

Gary has an HTC One with Beats audio. He has over 5,000 contacts and his phone won't let him search through them. Leo says that's likely because HTC has replaced the Google contacts app with its own, which is a problem. Google has started to release apps like Calendar and Docs on the Google Play store, but hasn't released the contacts yet. They probably won't, since people mostly use the phone's dialer for that.

John has a Samsung Galaxy S III phone, and his contacts are taking up nearly 10GB of space. Leo says that sounds extremely odd. Since it's been quite awhile sine John has reset the phone, he should try doing that. First he should make sure that the phone has been syncing and backing up his data. To do that, he can look at his Backup settings in the Settings menu and make sure it's enabled. He can even manually initiate a backup to make sure it's being done. Then he can do a full reset and that should clear everything up.

Jim's tablet won't log into Google services, saying he's using the wrong password. He can log into it on his computer, though. Leo says that a factory reset would likely fix it, but absent that, trying a different keyboard could solve it. Updating the OS could help as well.

One of the great things about Android is the ability to customize it for kids to use more safely. But if your Android device doesn't support a kids mode natively, there's a simple way you can still add that functionality -- a free launcher called "Kids Place - Parental Control."

This launcher provides parental controls and a child lock to protect your personal data. It restricts kids from using any app that you haven't approved, and there's a timer to limit the amount of time kids can spend on the device. It will also put restrictions on making phone calls and texting, and more.